Protective apparatus for repairers of baker&#39;s ovens.



C. SCHILLER.

PROTECTIVE APPARATUS FOR REPAIRERS TJF BAKERS OVENS. APPLICATION FILEDMAY 14. 1915.

1,15%,554. Patented Sept. 7,1915.

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COLUMBIA PLANOGRAPH C0,, WASHlNflTON. D. c.

CARL sciirnnniabr NEW roman. Y.

PROTECTIVE APPARATUS FOR REEPAIRERS OF BAKERS OVENS.

To all whom it may concern:

Be it known that I, CARL SorrILLnn, a citi zen of Germany, and aresident of New York, in the county of Bronx and State ofv New York,have invented certain new and useful improvements in ProtectiveApparatus for Repairers of Bakers Ovens, of which the following is aspecification. I

In repairing the baking chambers of bakers ovens, it has heretofore beenfound necessary to put the oven out of commission for a long period oftime, su fi icient for permitting the oven to cool down to such atemperature as would permitthe operator to" By my invention crawl intothe chamber. this undesirable loss of time may be obviated, the operatorbeing enabled to enter the chamber without inconvenience, while thelatter retains substantially its high temperature.

In the accompanying drawing: Figure 1 1s a plan of an apparatusembodying myinvention, with the covering removed; Fig. 2-

a similar view with the covering and roof removed; Fig. 3 a vertlcallongitudinal section of the apparatus; Fig. 4 an enlarged cross sectionon line 4-4: Fig. 3; Fig. 5 a similar cross section on line 5+5 Fig. 3and Fig. 6 a detail.

A rectangular frame 1, formed of angle iron and reinforced by a numberof cross bars 2, is adapted for the accommodation of a base plate 3,having a protuberance or head rest 4: near its forward end. To one ofthe longitudinal bars of frame 1, there are hingedat 5 a number of metalstraps 6, the free ends of which are adapted to be removably secured tothe opposite bar by winged nuts'7 (Fig. 6). Over straps 6 is spread acanvasor similar covering 8, which is adapted to be secured to thestraps by fasteners 9, the straps in conjunction with the coveringconstituting an openable roof. This roof extends however, only over therear portion of the frame to here form a chamber, the front portion ofthe frame being furnished with a fixed bow 10, which is secured totheframe at a distance back of its forward end. From bow 10 extendforwardly a pair of grooved rails 11, adapted for the reception of aslidable window 12, the rails being secured at their forward ends, tobow 10 by removable braces 13. The forward extension of the roof,constructed as described, is furnished with separate canvas coverings 14which extend from rails 11 Specification of Letters Patent.

Application filed May 14:, 1915. SerialNo. 27,996.

Patented Sept. a, rare.

over braces 13, to the forward portions of frame 1, the wholeccnstitutinga hood.

To the rear of frame 1, there is hinged at 15a foldable leg 16 which isof a length to reach the floor of the bakery while the frame rests uponthe sole of the oven chamber. To

an upper cross bar 17 of leg 16 is affixed a nozzle 18 adapted to becoupled by flexible pipe 19 to a fan or other generator of cooling air.Nozzle 18 extends a distance above the leg, the correlation of the partsbeing such, that when the leg is turned into a horizontal position, thenozzle will project a distance into the chamber beneath its roof.

In use, the apparatus is introduced with its forward end through theoven door, so as to be supported by the oven sole, while leg 16 is swungdown (Fig. 8) to rest upon the floor of the bakery and hold nozzle 18off the The operator crawls upon plate 3 until his chin rests uponingress end of the chamber.

protuberance 4-, the attendant turns down the roof, closes it by thecatches 7, and then pushes the entire device into the oven, during whichmanipulation, leg 16 will assume "a horizontal position, while nozzle 18will be projected into the back of the chamber. The nozzle being coupledto the cooled air generator, will cause a jet of such air to be passedover the body of the operator, which will protect him from the excessiveheat of the oven. When repairs are to be made along the bottom of thechamber, the operator reaches beyond the end of frame 1, during whichoperation, the front canvas coverings 1% as well as braces 13 may beremoved so that the operator has the free use of his arms.

When the repairs are to be made along the roof, braces 13 as well ascoverings 14,

are reinstated, and the operator turns upon his backwhen he can freelyinspect the parts requiring his attention through window 12, which willprotect his facefrom descending dust and loose particles.

I claim: 1. An apparatus of the character described comprising a frameadapted to be projected into a baking chamber, a base plate fittedwithin the frame, a roof extending over the frame to form a chamber,

and means forinjecting an air blast into said chamber. 1

2. An apparatus of the character described, comprising a base, a roofspanning the base, a leg hinged to the base, and a noz zle carriedby theleg and adapted to be I projected beneath thercof.

An apparatus of the character described, comprising a frame, a pluralityof v straps hinged at one of their ends to the a frame, means forremovably securing the p other ends of the straps to the frame,'acovering carried by the straps, and means for injecting an air blastunderneath the roof.

- 4. An apparatus of the character described, comprising 'a frame, aplate fitted Copies of this patent .m'ay be obtained for therein, anopenable roof carried by the frame,a leg hinged to one end of the frame,

and a nozz carried by the leg.

5. An apparatus of the character described, comprising a frame, anopenable roof carried by theback 0f the frame, a leg hinged to the rearend of the frame, a nozzle secured to the leg, and a Windowed hoodcarried'by the front of the frame.

CARL SCHILLER.

five cents each, by addressing the, Commissioner of Patents, Washington,D. C.

